Cosmological coincidence problem in interacting dark energy models

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dc.creatorSadjadi, H. Mohseni
dc.creatorAlimohammadi, M.
dc.date2006-10-16
dc.date2006-11-18
dc.date.accessioned2026-07-07T10:24:34Z
dc.date.available2026-07-07T10:24:34Z
dc.descriptionAn interacting dark energy model with interaction term $Q= λ_m Hρ_m+λ_dHρ_d$ is considered. By studying the model near the transition time, in which the system crosses the w=-1 phantom-divide-line, the conditions needed to overcome the coincidence problem is investigated. The phantom model, as a candidate for dark energy, is considered and for two specific examples, the quadratic and exponential phantom potentials, it is shown that it is possible the system crosses the w=-1 line, meanwhile the coincidence problem is alleviated, the two facts that have root in observations.
dc.description15 pages, LaTeX. Some minor explanations are added. To be published in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/gr-qc/0610080
dc.identifierhttp://arxiv.org/abs/gr-qc/0610080
dc.identifierPhys.Rev.D74:103007,2006
dc.identifierdoi:10.1103/PhysRevD.74.103007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/176235
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleCosmological coincidence problem in interacting dark energy models
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